Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Visuoperceptual

  • Farzin IraniEmail author
  • Samantha Foreman
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_1419

Synonyms

Visual-perception; Visuoperception

Definition

Visuoperceptual ability enables recognition of objects based on their form, pattern, and color. The visuoperceptual or “what” system is functionally and neuroanatomically distinct from the “where” system, which involves processing of visuospatial information. An occipito-temporal pathway known as the “ventral stream” is responsible for identifying “what” an object is, while a dorsal stream occipito-parietal pathway processes where information is located in space (Ungerleider and Mishkin 1982). Specifically, the visuoperceptual system gets input from “type P” retinal ganglion cells which project to the dorsal layers of the lateral geniculate nucleus followed by inferior occipital and temporal projections. Impairments in visuoperceptual abilities result in visual agnosias and deficits in form or pattern discrimination.

Historical Background

Dr. Arthur Benton recognized Hughlings Jackson as the first neurologist to identify...

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References and Readings

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Psychology DepartmentWest Chester University of PennsylvaniaWest ChesterUSA
  2. 2.Immaculata UniversityImmaculataUSA